Willie Nelson has released a new version of his country song, "Roll Me Up And Smoke Me When I Die," featuring rapper and fellow marijuana enthusiast Snoop Dogg just in time for - what else - April 20.

Also on Friday, Nelson is expected to attend the unveiling of an 8-foot bronze statue of himself in Austin, Texas. The date and "4/20" is a symbol of cannabis subculture and as a day of protest for the legalization of pot use.

The Grammy-winning country star's Austin monument was commissioned by Capital Area Statues Inc., a group of writers, film producers and musicians. One of its founders told the Associated Press that April 20 was picked as the date for the unveiling because Nelson was scheduled to perform in the city that night, not because of the counterculture significance. The event also takes place 10 days before his 79th birthday.

Both Nelson and Snoop Dogg has in the past been arrested for possession of cannabis, which is illegal under federal law but is permitted for medicinal use in more than a dozen states and in Washington D.C. It does not include Texas, Nelson's home state and where his and the rapper's recent pot arrests were made.

Nelson's song with Snoop Dogg was posted on Nelson's website on Thursday. Snoop Dogg sings on the track and does not rap. The website shows an image of a blunt slowly burning out as the music plays.

The song also features Jamey Johnson and Kris Kristofferson and contains lyrics such as "Roll me up and smoke me when I die / And if anyone don't like it, just look 'em in the eye / I didn't come here and I ain't leaving so don't sit around and cry / Just roll me up and smoke me when I die."

Nelson first performed the song publicly in Jacksonville, Oregon, in July 2011. The track is featured on the country singer's new album, "Heroes," which is set for release on May 15.